/*
 * jPOS Project [http://jpos.org]
 * Copyright (C) 2000-2015 Alejandro P. Revilla
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.jpos.ui.factory;

import org.jdom.Element;
import org.jpos.ui.UI;
import org.jpos.ui.UIFactory;

import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

/**
 * @author Alejandro Revilla
 *         <p/>
 *         creates a tabbed pane
 *         i.e:
 *         <pre>
 *          &lt;tabbed-pane font="xxx"&gt;
 *           &lt;pane title="xxx" icon="optional/icon/file.jpg"
 *                    action="yyy" command="zzz"&gt;
 *           ...
 *           ...
 *           &lt;/pane&gt;
 *          &lt;/tabbed-pane&gt;
 *         </pre>
 * @see org.jpos.ui.UIFactory
 */
@SuppressWarnings("unchecked")
public class JTabbedPaneFactory implements UIFactory, ChangeListener {
	UI ui;
	List actions = new ArrayList();
	JTabbedPane p;

	public JComponent create(UI ui, Element e) {
		this.ui = ui;
		p = new JTabbedPane();

		String font = e.getAttributeValue("font");
		if (font != null)
			p.setFont(Font.decode(font));

		Iterator iter = e.getChildren("pane").iterator();
		while (iter.hasNext()) {
			add(p, (Element) iter.next());
		}
		p.addChangeListener(this);
		return p;
	}

	private void add(JTabbedPane p, Element e) {
		if (e != null) {
			Icon icon = null;
			String iconFile = e.getAttributeValue("icon");
			if (iconFile != null)
				icon = new ImageIcon(iconFile);
			p.addTab(e.getAttributeValue("title"), icon, ui.create(e));

			String action[] = new String[2];
			action[0] = e.getAttributeValue("command");
			action[1] = e.getAttributeValue("action");
			actions.add(action);
		}
	}

	public void stateChanged(ChangeEvent e) {
		try {
			String action[] = new String[2];
			action = (String[]) actions.get(p.getSelectedIndex());
			Object al = ui.get(action[1]);
			if (al instanceof ActionListener) {
				ActionEvent ae = new ActionEvent(this, 0, action[0]);
				((ActionListener) al).actionPerformed(ae);
			}
		} catch (Exception f) {
			f.printStackTrace();
		}
	}
}

